Picture opacity adjustment

Hi. I can’t seem to find the picture opacity slider bar under the Properties: Objects side bar. Does anyone know where this option has moved? I’m running Rhino for Mac on an M1 chip.

You can find that in your materials tab.

Welcome Chris,

With your picture selected, you can find Object transparency under the Materials tab, like @jason already mentioned above.

Thank you…Hmmmm. My materials tab is looking a little jacked up at the moment:

You need to have the picture selected.

The picture is selected. It’s the only thing that is selected.

Hm, no idea! I’m on an M1 Mac, too. Which version of Rhino are you using?
How have you brought the image into Rhino?

I’m using the most up to date version. I definitely thought that was my issue at first but it seems I’m up to date. I brought the image in via the “picture” command (I typed it into the command line like I always do). I’ve used this opacity feature before which is kinda freaking me out. No idea why it doesn’t show up now.

Hi Chris -
Please run the Rhino SystemInfo command and copy-paste the result here.

Thanks Wim. Here it is:

Rhino 7 SR23 2022-10-9 (Rhino 7, 7.23.22282.13002, Git hash:master @ a931168ca9426920ae6aa97218710b662f17fc39)
License type: Commercial, build 2022-10-09
License details: Cloud Zoo

Apple macOS Version 12.5.1 (Build 21G83) (Physical RAM: 32Gb)
Rhino is running in Rosetta2 on Apple Silicon
Mac Model Identifier: MacBookPro18,2
Language: en-US (MacOS default)

Apple M1 Max (OpenGL ver:4.1 Metal - 76.3)

OpenGL Settings
Safe mode: Off
Use accelerated hardware modes: On
Redraw scene when viewports are exposed: On

Anti-alias mode: 4x
Mip Map Filtering: Linear
Anisotropic Filtering Mode: High

Vendor Name: Apple
Render version: 4.1
Shading Language: 4.10
Maximum Texture size: 16384 x 16384
Z-Buffer depth: n/a
Maximum Viewport size: 16384 x 16384
Total Video Memory: 21845 MB
Graphics: Apple M1 Max
Displays: Unknown (255dpi 2x), Unknown (163dpi 2x), Unknown (163dpi 2x)

Graphics processors
Apple M1 Max
Color LCD (1728 x 1117 @ 120.00Hz)
DELL U2720Q (1920 x 1080 @ 60.00Hz)
DELL U2720Q (1920 x 1080 @ 60.00Hz)

USB devices
GenesysLogic: USB3.1 Hub
USB C : USB C Video Adaptor
3Dconnexion: 3Dconnexion Universal Receiver

Bluetooth devices

Third party kernel extensions

Third party plugins

Rhino plugins that do not ship with Rhino

Rhino plugins that ship with Rhino
/Applications/Rhino 7.app/Contents/Frameworks/RhCore.framework/Resources/ManagedPlugIns/RhinoCycles.rhp “RhinoCycles” 7.23.22282.13002
/Applications/Rhino 7.app/Contents/PlugIns/import_PDF.rhp “PDFReader” 7.23.22282.1002
/Applications/Rhino 7.app/Contents/Frameworks/RhCore.framework/Resources/ManagedPlugIns/Import_OBJ.rhp “Import_OBJ” 7.23.22282.13002
/Applications/Rhino 7.app/Contents/Frameworks/RhCore.framework/Resources/ManagedPlugIns/Import_SVG.rhp “Import_SVG” 7.23.22282.13002
/Applications/Rhino 7.app/Contents/PlugIns/NamedSnapshots.rhp “Snapshots” 7.23.22282.1002
/Applications/Rhino 7.app/Contents/PlugIns/RhinoBonusTools.rhp “Rhino Bonus Tools” 7.23.22282.1002
/Applications/Rhino 7.app/Contents/Frameworks/RhCore.framework/Resources/ManagedPlugIns/GrasshopperPlugin.rhp “Grasshopper” 7.23.22282.13002
/Applications/Rhino 7.app/Contents/PlugIns/NamedPositions.rhp “Named Position” 7.23.22282.1002
/Applications/Rhino 7.app/Contents/PlugIns/PanelingTools.rhp “PanelingTools” 7.23.22282.1002
/Applications/Rhino 7.app/Contents/PlugIns/AnimationTools.rhp “AnimationTools” 7.23.22282.1002
/Applications/Rhino 7.app/Contents/Frameworks/RhCore.framework/Resources/ManagedPlugIns/Export_OBJ.rhp “export_OBJ” 7.23.22282.13002
/Applications/Rhino 7.app/Contents/Frameworks/RhCore.framework/Resources/ManagedPlugIns/Commands.rhp “Commands” 7.23.22282.13002
/Applications/Rhino 7.app/Contents/Frameworks/RhMaterialEditor.framework “Renderer Development Kit” 7.23.22282.1002
/Applications/Rhino 7.app/Contents/Frameworks/RhCore.framework/Resources/ManagedPlugIns/RDK_EtoUI.rhp “RDK_EtoUI” 7.23.22282.13002
/Applications/Rhino 7.app/Contents/PlugIns/Displacement.rhp “Displacement” 7.23.22282.1002
/Applications/Rhino 7.app/Contents/Frameworks/RhCore.framework/Resources/ManagedPlugIns/BlockEdit.rhp “BlockEdit” 7.23.22282.13002
/Applications/Rhino 7.app/Contents/PlugIns/RhinoLabsTools.rhp “Rhino Labs Tools” 7.23.22282.1002
/Applications/Rhino 7.app/Contents/Frameworks/RhCore.framework/Resources/ManagedPlugIns/RhinoRenderCycles.rhp “Rhino Render” 7.23.22282.13002
/Applications/Rhino 7.app/Contents/Frameworks/RhCore.framework/Resources/ManagedPlugIns/RhinoDLR_Python.rhp “IronPython” 7.23.22282.13002
/Applications/Rhino 7.app/Contents/PlugIns/RhinoRender.rhp “Legacy Rhino Render” 7.23.22282.1002


Hi Chris - just making sure -why is gumball off to one side? Did you move it there?


I was wondering that myself. I have no idea why the gumball is way off to the side.

My Guess Of The Moment is that the picture is grouped with some other object(s). When you click on it, what does the command line /command history say is selected?


It’s called an “open surface”. I tried ungrouping it but that didn’t really do anything.

Hi Chris - do we have your file? If not can you post it here (public) or send to tech@mcneel.com to my attention with a lonk back here in your comments?


Thanks so much for helping with this. My solution involved me shutting Rhino down and re-opening it. We are now able to change the opacity of pictures.